<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
      #app {
          text-align: center;
          font-family: 'Avenir', Helvetica, Arial, sans-serif;
          -webkit-font-smoothing: antialiased;
          -moz-osx-font-smoothing: grayscale;
          text-align: center;
          color: #2c3e50;
          margin-top: 60px;
      }
  </style>
</head>
<body>
<div id="app">
  <img src="./img/404.png" alt="">
  <div>哎呀~页面找不到了(╥╯^╰╥)</div>
</div>
</body>
</html>
